{"product_id":"simpson-strong-tie-sdwh-timber-hex-screw-hot-dip-galvanized","title":"Simpson Strong-Tie Strong-Drive SDWH Timber-Hex Screw, 0.276 in., Hot-Dip Galvanized","description":"\u003cstyle\u003e\n.pb-wrap{--pb-line:#e1e3e5;--pb-head:#f6f6f7;max-width:100%}\n.pb-wrap .pb-intro{margin-bottom:20px}\n.pb-acc{border:1px solid var(--pb-line);border-radius:8px;margin:0 0 8px;overflow:hidden}\n.pb-acc\u003esummary{cursor:pointer;padding:14px 16px;font-weight:600;line-height:1.35;\n list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}\n.pb-acc\u003esummary::-webkit-details-marker{display:none}\n.pb-acc\u003esummary::marker{content:\"\"}\n.pb-acc\u003esummary::after{content:\"+\";font-size:22px;font-weight:400;line-height:1;flex:0 0 auto}\n.pb-acc[open]\u003esummary::after{content:\"\\2212\"}\n.pb-acc[open]\u003esummary{border-bottom:1px solid var(--pb-line);background:var(--pb-head)}\n.pb-acc\u003esummary:hover{background:var(--pb-head)}\n.pb-acc .pb-body{padding:16px}\n.pb-acc .pb-body\u003e:first-child{margin-top:0}\n.pb-acc .pb-body\u003e:last-child{margin-bottom:0}\n.pb-q{border:0;border-bottom:1px solid var(--pb-line);border-radius:0;margin:0}\n.pb-q:last-child{border-bottom:0}\n.pb-q\u003esummary{padding:12px 0;font-weight:600}\n.pb-q[open]\u003esummary{background:transparent;border-bottom:0}\n.pb-q\u003esummary:hover{background:transparent;text-decoration:underline}\n.pb-q .pb-body{padding:0 0 12px}\n.pb-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}\n.pb-table{width:100%;border-collapse:collapse;font-size:14px;min-width:380px}\n.pb-table th,.pb-table td{border:1px solid var(--pb-line);padding:8px 10px;\n text-align:left;vertical-align:top}\n.pb-table thead th{background:var(--pb-head)}\n.pb-table caption{caption-side:top;text-align:left;font-weight:600;padding:0 0 8px}\n.pb-note{font-size:13px;opacity:.75;margin-top:16px}\n.pb-wrap a{color:#3b82f6}\n.pb-wrap a:hover{color:#2563eb}\n\u003c\/style\u003e\u003cdiv class=\"pb-wrap\"\u003e\n\u003ch2\u003eStrong-Drive SDWH Timber-Hex Screw, Hot-Dip Galvanized\u003c\/h2\u003e\n\u003cdiv class=\"pb-intro\"\u003e\n\u003cp\u003eThe SDWH Timber-Hex HDG is a 0.276 in. heavy structural wood screw with a hot-dip galvanized coating suited to coastal, marine and flood-resistant construction. The 0.93 in. integral washer head means no separate washer.\u003c\/p\u003e\n\u003cp\u003eDrive it with a 1\/2 in. low-speed corded drill and 3\/8 in. hex; a cordless impact driver may not have the torque for the long lengths.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdetails class=\"pb-acc\"\u003e\u003csummary\u003eFeatures and Common Uses\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\n\u003cul\u003e\n\u003cli\u003e0.276 in. shank, 3 in. thread\u003c\/li\u003e\n\u003cli\u003eASTM A153 Class C hot-dip galvanized\u003c\/li\u003e\n\u003cli\u003eSawTooth point for fast starts with no predrill\u003c\/li\u003e\n\u003cli\u003e0.93 in. integral washer head, 3\/8 in. hex drive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCommonly used for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDeck ledgers and beam connections\u003c\/li\u003e\n\u003cli\u003ePile and pier connections, docks and boardwalks\u003c\/li\u003e\n\u003cli\u003eCoastal and flood-resistant construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"pb-acc\"\u003e\u003csummary\u003eSpecifications\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\n\u003cdiv class=\"pb-scroll\"\u003e\u003ctable class=\"pb-table\"\u003e\n\u003ccaption\u003eProduct Specifications\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eSimpson Strong-Tie\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eModels\u003c\/th\u003e\n\u003ctd\u003eSDWH271200GMB (12 in.), SDWH271500GMB (15 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eShank\u003c\/th\u003e\n\u003ctd\u003e0.276 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eThread length\u003c\/th\u003e\n\u003ctd\u003e3 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDrive\u003c\/th\u003e\n\u003ctd\u003e3\/8 in. hex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHead diameter\u003c\/th\u003e\n\u003ctd\u003e0.930 in. washer head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCoating\u003c\/th\u003e\n\u003ctd\u003eHot-dip galvanized, ASTM A153 Class C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"pb-note\"\u003eDimensions are from Simpson's product data for the SDWH271200GMB and SDWH271500GMB. Design values depend on species and penetration; see the fastening catalogue. Source: \u003ca href=\"https:\/\/ssttoolbox.widen.net\/view\/pdf\/ajdlb27g4x\/C-F-2025-p058-090.pdf\" target=\"_blank\" rel=\"noopener\"\u003eSimpson Strong-Tie Fastening Systems Catalog C-F-2025, pp. 58-90 (PDF)\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"pb-acc\"\u003e\u003csummary\u003eHow to Install\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\n\u003col\u003e\n\u003cli\u003eChoose a length that fully embeds the thread in the main member.\u003c\/li\u003e\n\u003cli\u003eDrive with a 1\/2 in. low-speed corded drill until the washer head is snug.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"pb-note\"\u003eFull installation notes and load tables: Source: \u003ca href=\"https:\/\/ssttoolbox.widen.net\/view\/pdf\/ajdlb27g4x\/C-F-2025-p058-090.pdf\" target=\"_blank\" rel=\"noopener\"\u003eSimpson Strong-Tie Fastening Systems Catalog C-F-2025, pp. 58-90 (PDF)\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/details\u003e\u003cdetails class=\"pb-acc\"\u003e\u003csummary\u003eFrequently Asked Questions\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\u003csummary\u003eIs it good for salt air?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eSimpson lists coastal, salt-air, marine and dock applications for this hot-dip galvanized screw.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"pb-acc pb-q\"\u003e\u003csummary\u003eDo I need a washer?\u003c\/summary\u003e\u003cdiv class=\"pb-body\"\u003e\u003cp\u003eNo. The 0.93 in. integral washer head replaces one.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Product\",\"@id\":\"https:\/\/griffbuildingsupplies.com\/products\/simpson-strong-tie-sdwh-timber-hex-screw-hot-dip-galvanized#product\",\"name\":\"Simpson Strong-Tie Strong-Drive SDWH Timber-Hex Screw, 0.276 in., Hot-Dip Galvanized\",\"url\":\"https:\/\/griffbuildingsupplies.com\/products\/simpson-strong-tie-sdwh-timber-hex-screw-hot-dip-galvanized\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Simpson Strong-Tie\"},\"category\":\"Hardware \u003e Hardware Accessories \u003e Hardware Fasteners \u003e Screws \u003e Wood Screws\",\"description\":\"Simpson Strong-Tie SDWH 0.276 in. timber-hex screw, ASTM A153 Class C hot-dip galvanized, 12 or 15 in. For ledgers, piles and marine work.\",\"material\":\"Carbon steel, hot-dip galvanized (ASTM A153 Class C)\",\"image\":\"https:\/\/ssttoolbox.widen.net\/content\/njro7eg2h9\/jpeg\/F_SDWH271200G_ProdPho_Pho_Prod_SDWH-TimberHex-HDG-Screw_C0.jpeg\",\"additionalProperty\":[{\"@type\":\"PropertyValue\",\"name\":\"Brand\",\"value\":\"Simpson Strong-Tie\"},{\"@type\":\"PropertyValue\",\"name\":\"Models\",\"value\":\"SDWH271200GMB (12 in.), SDWH271500GMB (15 in.)\"},{\"@type\":\"PropertyValue\",\"name\":\"Shank\",\"value\":\"0.276 in.\"},{\"@type\":\"PropertyValue\",\"name\":\"Thread length\",\"value\":\"3 in.\"},{\"@type\":\"PropertyValue\",\"name\":\"Drive\",\"value\":\"3\/8 in. hex\"},{\"@type\":\"PropertyValue\",\"name\":\"Head diameter\",\"value\":\"0.930 in. washer head\"},{\"@type\":\"PropertyValue\",\"name\":\"Coating\",\"value\":\"Hot-dip galvanized, ASTM A153 Class C\"}]},{\"@type\":\"FAQPage\",\"@id\":\"https:\/\/griffbuildingsupplies.com\/products\/simpson-strong-tie-sdwh-timber-hex-screw-hot-dip-galvanized#faq\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Is it good for salt air?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Simpson lists coastal, salt-air, marine and dock applications for this hot-dip galvanized screw.\"}},{\"@type\":\"Question\",\"name\":\"Do I need a washer?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. The 0.93 in. integral washer head replaces one.\"}}]},{\"@type\":\"HowTo\",\"@id\":\"https:\/\/griffbuildingsupplies.com\/products\/simpson-strong-tie-sdwh-timber-hex-screw-hot-dip-galvanized#howto\",\"name\":\"How to install Simpson Strong-Tie Strong-Drive SDWH Timber-Hex Screw, 0.276 in., Hot-Dip Galvanized\",\"tool\":[{\"@type\":\"HowToTool\",\"name\":\"1\/2 in. low-speed corded drill\"},{\"@type\":\"HowToTool\",\"name\":\"3\/8 in. hex socket\"}],\"supply\":[{\"@type\":\"HowToSupply\",\"name\":\"Simpson Strong-Tie Strong-Drive SDWH Timber-Hex Screw, 0.276 in., Hot-Dip Galvanized\"}],\"step\":[{\"@type\":\"HowToStep\",\"position\":1,\"name\":\"Set the length\",\"text\":\"Choose a length that fully embeds the thread in the main member.\"},{\"@type\":\"HowToStep\",\"position\":2,\"name\":\"Drive\",\"text\":\"Drive with a 1\/2 in. low-speed corded drill until the washer head is snug.\"}]}]}\u003c\/script\u003e","brand":"Simpson Strong-Tie","offers":[{"title":"12 in.","offer_id":55714046345535,"sku":"SDWH271200GMB","price":11.79,"currency_code":"CAD","in_stock":true},{"title":"15 in.","offer_id":55714046378303,"sku":"SDWH271500GMB","price":17.65,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/4901\/7919\/files\/F_SDWH271200G_ProdPho_Pho_Prod_SDWH-TimberHex-HDG-Screw_C0.jpg?v=1790352941","url":"https:\/\/griffbuildingsupplies.com\/zh\/products\/simpson-strong-tie-sdwh-timber-hex-screw-hot-dip-galvanized","provider":"Griff Building Supplies","version":"1.0","type":"link"}